| Description: The particle_type attribute indicates the type of particle being described. |
| Namespace Id: particle | Steward: ppi | Class Name: Particle_Parameter | Type: ASCII_Short_String_Collapsed |
| Minimum Value: None | Maximum Value: None | Minimum Characters: 1 | Maximum Characters: 255 |
| Unit of Measure Type: None | Default Unit Id: None | Attribute Concept: None | Conceptual Domain: SHORT_STRING |
| Status: Active | Nillable: false | Pattern: None |
| Permissible Value(s) | Value | Value Meaning |
| | Electrons | Electrons are subatomic particles with a negative electrical charge. |
| | Ions | Ions are particles with an electrical charge. |
| | Neutrals | Neutrals are particles with no net electrical charge. |